walker, and his friend died. the l.a. county coroner's office says autopsies are underway on the two bodies. the report will provide official word on whether walker or his friend was behind the wheel during saturday's crash. walker's publicist says the actor was the passenger in that porsha as it crashed into a light pole and tree and exploded into flames. >>> the investigation into the deadly train derailment in the bronx is zeroing in on the driver. he said he went into a daze just before the train ran off the rails. federal investigators say that so far, they found no mechanical reason for a metro north commuter train to travel at almost three times the speed limit and soar off the tracks sunday killing four people. >> there's no indication that the brake systems were not functioning properly. >> sources say engineer, william rockefeller, told first responders that before the train derailed, he began to daze, thinking about nothing in particular. rockefeller and the other crew members were given drug and alcoh